OPENNLP-1770: Updating logo for docs

[jzonthemtn]

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[rzo1]

Note: needs cherry picking to 2.x as well

[atarora]

Looks good!
A nitpick - feel free to ignore, the TM in the original logo seems missing in the new one.

[jzonthemtn]

Looks good! A nitpick - feel free to ignore, the TM in the original logo seems missing in the new one.

I wondered about that, too. This logo came from ASF M&P so I would expect it should be made per the ASF policy and adhere to the trademark rules...? I can make a note to ping them and see.

[mawiesne]

I can make a note to ping them and see.

Put the PR to draft mode until feedback has arrived.